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Describe the role of a ribosome in the production of a polypeptide

mRNA from the nucleus binds to a ribosome which is either free in the cytoplasm or associated with the rough ER. The ribosome binds at the 5' end and scans to the start codon (AUG). The ribosome allows tRNA ...
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Answered by Josh M. • Biology tutor
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What are the key structural differences between a eukaryotic and prokaryotic cell?

Eukaryotic Cells - Eukaryotic cells are multicellular and more complex- Contain membrane bound organelles, so this includes a nucleus, which contains the genetic material as chromosomes, but other organelles...
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Answered by Adam A. • Biology tutor
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Explain the process of ultrafiltration in the kidney.

Ultrafiltration begins in the nephron in the kidney. Blood travels through a coiled structure of capillaries called the glomerulus surrounded by the Bowman's capsule. The hydrostatic pressure of the flow of ...
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Answered by Nuala M. • Biology tutor
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What is the central dogma of molecular biology?

It explains the flow of information in biological systems, especially in eukaryotes. It can be simplified to "DNA makes RNA makes protein". This explains how DNA, which is passed down the generatio...
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Answered by Kalyan M. • Biology tutor
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What is the difference between transcription and translation?

This is a rather fundamental question and it's important to get it right. Remember, the central dogma of biology is, in its most basic form, DNA makes RNA makes protein. Transcription is the process by which...
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Answered by Serena M. • Biology tutor
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